Pixel Driving Circuit Layout to Reduce Display Parasitic Capacitance
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Solution Overview
Problem
Existing display devices face challenges in enhancing display quality due to the relationship between light emitting elements and pixel driving circuits, which affect reliability and efficiency.
Innovation Solution
The display device incorporates a design where pixel driving circuits are arranged in a specific configuration, with connection electrodes reducing parasitic capacitance by minimizing their length and area, thereby improving display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connection electrodes are made longer or larger in area to ensure proper electrical connection, then electrical connectivity is improved, but parasitic capacitance increases which deteriorates display quality
Solution Approach 1:
The patent changes the geometric parameters of connection electrodes by arranging pixel driving circuits in a specific configuration where the first pixel driving circuit is positioned between the second and third pixel driving circuits. This spatial arrangement minimizes the length and area of connection electrodes, thereby reducing parasitic capacitance while maintaining electrical connectivity.
2Reliability
If pixel driving circuits are arranged in a compact configuration to improve display quality, then parasitic capacitance is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent segments the pixel driving circuits into distinct groups (first, second, and third pixel driving circuits) with specific spatial relationships. The first pixel driving circuit is positioned between the second and third pixel driving circuits, creating a modular arrangement that simplifies the overall layout while achieving the goal of reduced parasitic capacitance.
Data Source
AI summary
A display device includes a first light emitting element that emits first light and includes a plurality of sub-elements spaced apart from each other, a second light emitting element that emits second light, a third light emitting element that emits third light, a first pixel driving circuit electrically connected to the first light emitting element, a second pixel driving circuit electrically connected to the second light emitting element, and a third pixel driving circuit electrically connected to the third light emitting element. The first pixel driving circuit is disposed between the second pixel driving circuit and the third pixel driving circuit in a plan view.